Abstract
Failure of subsea cables can lead to expensive repairs and downtime of offshore generation and transmission assets. Cable failure in wet environments frequently arises from damage to the protective sheath or jacket layers. Existing solutions such as water-blocking tapes stop water travelling longitudinally in cables, but they are not structurally stable and provide only temporary protection. Kinectrics UK have developed a hydrophilic-TPE water protection material that achieves cable self-repair by a swell response on contact with water, which closes defects and forms a stable water blocking barrier, preventing water travelling within the cable. Prototype cables have been produced using the hydrophilic-TPE as a sub-sheath protection layer and work is ongoing to demonstrate their performance in a realistic subsea simulated environment.
Published Version
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